Sure, sure: Hitler, Mussolini ,Tojo and Stalin and all that lot started the war, but it took the collective will of the world's best scientists and engineers to build their visions up into History's bloodiest, most heart-less war.
It was the scientists' war, the only truly Modernist war, the war of their big shiny machines . Scientism's big moment under the Klieg Lights.
It was Science's incautious pre-war claims that moved the politicians and the generals and the industrialists and - above all - the ordinary public of all nations to fund the killing machines --- in preference to returning to the foot soldier led wars of earlier times.
Of course in the end, we never saw the scientists in the box in Nuremberg in 1945 : because many many more of us, back then, saw 1945 as the apogee of Modernist science rather than its death knell and the birth of post-modernity.....